Attachment for road scrapers or graders



May 8, 1923.v

P. c. MERILLAT ATTACHMENT FOR ROAD SCRAPERS OR GRADERS I 4 Sheets-Sheet l f 'El' Filed Dec. 27 A1921 mpc/nto@ May 8, 1923.

P. c. MERILLAT y `ATTACHMENT FOR ROAD SCRAPERS OR GRADERS Filed Dec. 27. 1921 4 Sheets-Sheet 2 May 8, E923.

P. c; MERILLAT ATTACHMENT' FOR ROAD SCRAPERS 0R 'GRADERS Snom/Lto@ ya' VFiled Dec. 27,.

@wi/Weno T711". Maw/m56 Cil Patented May 8, 1923. i

invitan srarss F T i PETER C; MERILLAT, 0F W'NFIELD. OWA.

ATTACHIMENT FORROAD SCMPEES OR GRADERS.

Application led December 27, 1921. Serial No. 525,078.

clare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it appertains to malte and use the same.

This invention relates to an improved at-y tachment for use in connection with a conventional construction 'of road grader or scraper and one object ot the invention is to provide an attachment which may be put in place in connection with a conventional structure ot road scraper and will provide a machine by means of which a relatively wide strip of road may be kept properly graded and smooth and at the same time a gutter at the side of the road cleaned out.

rxnotlier object of the invention is to so construct this attachment that it may include blades which will forni auxiliary bla-des to the main scraping blade of the road grader and to so construct the attachnient that a main carrying bar thereof may be connected with the turn-table with which the main scraping blade is connected and the main scraping bladel and auxiliary blades thus caused to move as a unit when the turn-table rotates. Another object of the invention is to so construct the auxiliary blades that theyl may be connected with the end portions of the main blade for vertical tilting movement and one of the blades permitted of' horizontal swinging movement means being provided for controlling horizontal swinging movement of the last mentioned auxiliary blade so that this auxiliary blade may be held at a desired angle with respect-to the main blade and thus permit of cleaning out ot' the gutter in a very eiiicient manner.

Another object of the invention is to provide improved means for vertically adjusting the auxiliary blades and retaining them in the adjusted position, the adjusting means for each of the blades including a rocker bar pivotally mounted in a cradle for vertical movement and the cradle :tor the rockei' bar haviiiO connection with the horizontally movable auxiliary blade being mounted for swinging movement so that the cradle may swing horizontally with the auxiliary blades and thus remain in the proper position above the blades.

Another object of the invention is to pro# vide improved means :tor yielda-bly holdin the auxiliary turn-table carrying frameo the main scraper frame againstdo'wnward movement thereby permitting of the extra .weight being compensated for and the a-uxiliary frame permitted of being vertically adjusted vei'y easily.

This invention isillustrated in the accompanying drawings,wherein: 1

Figure l is a topr plan view of a grader having the improved attachment associated therewith. i l

Figure 2 is a view showing the structure of Fig. l partially in side elevation and partially insect-ion. f

Figure 8 is a fragmentary sectional' view taken along the line 3 3 of Fig. 4 and substantially along the line 3 3 of Fig. l.

Figure 4 is a sectional view taken along the line 4 4 of Fig. 3.

Figure 5 is a. fragmentary perspective v. view of onel of the auxiliary blades.

Figure 6 is a sectional view taken alongV the line 6 6 of Fig. 3.

Figure 7 is a sectional view taken along the line 7 7 of Fig. 6.

- i isaiasi' Figure 8 is a sectional view taken along the line 8 8 of Fig. 6 orialong' the line `8 8 of Fig. 3.

Figure 9 is a. sectional view taken along the line 9 9 `of Fig. A1. f

Figure l0 is a sectional View taken along the line 10 l0 of Fig, l. i

Figure l1 is a sectional view taken along f tlieline ll l1 of Fig. l.

Figure 12 is a view showing a modiiied construction in the forward endet the machine.

This device is an attachment to be used in connection with a road scraper or grader having a conventional construction. In Figs. -l and 2, the attachment has been shown in connection with a road scraper having a main frame which is indicated in general by the numeral l and an auxiliary frame 2. This auxiliary frame 2 is pivotally mounted at its forward end as shown at Stor ver` tical movement and has its rear end portion supported by supports which are of a conventional construction and each .of which in the present illustration consists off an internally threaded sleeve lconnected with theauxiliary Jframe and a threaded stein 5 which is journeled in a cross bar 6 of the mein trame and provided at its upper end with e hand-wheel 7 so that the stein 5 may be readily rotated to litt. or lower the rear end portion ot' the auxiliar-j,v freine and retain the lnixiliary traine in the edi usted position. A turn-table 8 is rotatably carried by the auxiliary trarne and the main ing,` blade 9 which is the usual scraper blade provided upon road scraper carried by this turn-table and may be pinned at the desired angle with respect to the road by turning of the turn-trible. All ot' the details ot' construction in Connection with the main traine and auxiliary traine and turn table here not been shown as this structure is a conventional construction and only suiiicient structure has been illustrated to show the'applieetion oit the uttaelnient to 'the road scraper.

This attachment is to turn with the turntable and therefore there has been provided e niain carrying bur it) which is secured upon the turn-table in liront or the main blade 9 by ineans ot' cross strips l 'which extend above and below the niain Curryinj ber and are bolted to this carrying bei and to cross strips l2 end l ot the turn-table. This carrier barextei ds beyond the turn* table and beyond the sioes o'l'f the traine. At one side ot' the nieehine7 there has been provided inner end outer set of Cross strips lll and l5 which are seeured :there und beseranlow the carrier bar l0 in crossed relation thereto by ineens ot bolts The depending portion ot the outer cross strip lf-l se-` cured to the ina-in blade 9 by bolt 9 und is also secured to a dependin portion l5 et the Cross strip l5 by a boal l" es shown in Fig. ll. 'lie lower end ot the depending portion oi' the outer cross strip l-L bent to proyice space between this depending portion and the rear talee or' the iuain blade. 'he bolts i6 tor securing the cross strips lil and l5 extend upwardly as shown in Fig. 9 and Carry a guide strip li' vhieh serves 'to `uide s'w'inginy inorenient of eredle end to prevent tilting nioven'iont oi,l this cradle as will hereinafter be brought out. lilroin an inspection ot 9, it will 'oe seen that the depending;i en: portions ot tnA s' l and 'l5 are secured 'by bolts which through the upper oortion ot rthe auxiliary scraping binde 18 'for this sido o bine has its behind the tion en: t. the inein oe and conn bowed portion oi the depend outer cross stri p i perniittedi vert?W l d ing inoyenient so it will be hereinafter br the opposite side ot' the i been provided un out cross si, is secured by ineens of a bolt 2O vided with a depending end portion secured to the rear tace ot the blade 9. Inner cross strips 22 and 23 are secured in Crossed relation to the eer lier bar with the strip 23 4ieneath lthe carrier bar and serear face ot the inztin blade 9. he upper Cross strips are held in spaced ion upon l securing bolts 24 end 25 bracing' strips 2G are carried by the :funi connected with the resi tace ot y f' yrtion ot the strip 19. The

ieiy blut w upon this side ot the ina positioned in iront. oit the blade J o end thereof and carries a strip securet` upon its rear tace by fastener bote 29 which extend through slots in the end portions of the strips '128.

The nL stripl 30 which is arcuate in Cross secured et its lower end by a the bearing strip 30 secured strip muy be positioned :it

di. i

the )oit 255 is put in place es shown t3 und t3, the blade 2T will be ed for horizontal and vertical swingr rement and therefore practically pero? universel swinging` movement.

hln" and Q7 are to be permitted ino'zenient in a. horizontal and it is desired to brace these an" inst rearward movement in the 'entail plane so that they may be reniain blade, There has therefore been 'it ed u sectional shaft wnieh is carried n iin trunie end provided with end por ion,fl 36 and Si which Carry sleeves 38 :inl 29y the sleeve 38 being rigid upon the.

section SG ot the shaft and the sleeve 39 beingr ri id upon the section 37 ot this shaft the section 36 as :ind trattino' loosely upon shown in n l. fr cable O is wound upon sleeve IBS and u Chain Lll wound uoon n r w Y l the sleeve e9. lelie chain and the Cable are 1Cirri/ed r vardly and ab it pulley wheels ein id by a breeliet :it the forward end o the machine end il ie tree d nortion ot `he auxiliary blade 1S. The chain it Carried rearwardly und aft-er passed over the pulley wheel which is susp n-'led by the ehein 4G Ytroni the renin Aie niaehine is Connected with the su' eled upon the itree end por- 4:55 which extends forwardly )lede 27. l? j he y n scraper blade 9 carries f sired :ingle upon the blade 9 so that I einer .t the desired angle with respect to f, free end portion ot the auxiliary.

fr the bracket et? the bracket at the desired point with respect to the arm d8. Therefore the proper pull can be exerted upon the auxiliary blade 27. lilhen the machine is in use, the shaiit sections 36 and 37 may be rotated to let out upon the line and chain LlO and ll or. may be rotated to wind the chain and line or cable upon the sleeve until the auxiliary blades are in the proper position with respect to the main blade 9. The latches 50 can then be brought into engagement with the ratchet wheels l and the sleeve will be held against rotation which would permit of `further unwinding ot' the cable and chain and the two auxiliary blades will be firmly braced and prevented from moving rearwardly outo the desired position.4

ln addition to having the blades held against horizontal movement beyond adesired point, it is also desired to provice means for vertically adjusting the auxiliary blades and releasably holding them in the adjusted position. ln order to do so, each blade will be provided with the adjusting meansfwliich will now be described. Upon each end portion ot the carrier bar l0 there will be provided a cradle, these cradles being pivotally mounted at their outer ends by the bolts and liavingtheir inner end portions extending for projecting between the cross strips lllfandli' and 2l and i2. rlheretore,` each cradle is permitted to have swinging movement and will be guided in its swingingl movement and held against vertical tilting movement. Each cradle is provided with aA base 52 which is formed of channel iron. Bearing arms 53 are provided at 'the outer ends ot the base strip and ex tend upwardly from the side iianges thereoic and a yoke or bearing 5d which is oi" an inverted U-shape extends upwardly from the inner end portion of the inner end oi2 the base strip. Bracing strips 55 are provided and serve to retain the bearing strips 5S and y yolre v5t the proper distance apart and in a vertical position. il rocher 'bar 56 which is preferably tormedas a hollow tube extends longitudinally oi' this cradle and is provided intermediate its length with a sleeve or col- 1 r" 1 i v iai ai trom which extends bearing ears 58 so that the rocker bar may be mounted for` vertical swinging movement as shown in Fig. V6. rlhis rocher bar is braced by truss rods 59 which have their forward end portions passed tlirough a head plate GO and provided with securing nuts so that the 'truss rods may be placed under tension. Strips or arms Gl are connected with the outer end portion or" this rocker br and extend downwardly and have their lower end portions engaged by a bolt G2 which extends through a slot G3 formed in a strip 6l which is connected with the auxiliary blade and extends above the upper edge of the auxiliary blade. A'spring 65 is provided about this strip 6a and engagesthe auxiliary blade and bolt 62 so that the auxiliary blade will be yieldably y held against upwardI movement by this spring 65 but perniitted'to have upwardv movement against the action oihthe spring in case the blade should strilre an obstruction in the road over which it .could not pass without damage to the machine it l'this upward movement roithe blade were not provided ior. in order to permit of the rocker bar being swung vertically and releasably held in an adjusted position with the auxiliary blade held at the desired angle7 there has been provided a threade'dshatt 66 which has its lower end portion passed through abearing strip 57 and has its upper end portion passing through the 4cross' heado't the yolre 54. An internally threaded bloclr68 is pivotally; and slidably mounted between arnis 69 as shown in Figs. 3 and 4f by meansy or side pins 68 which lit into ,slots 69*l formed in the arms 69. rlliese arms 69 extend uponl opposite sides ot the rear end portion otthe rocker bar as shown in Figs. 3 and 4C and this block GS ism'ounted upon the threaded shalt G5 so that as the shaft is rotated, the block Y will bemOved vertically upon the shaft and the rocher bar rwill-be swung ver tically to litt or lower the auxiliary blade` and support the auxiliary blade in the de sired position. The shaft 66 extends above the yoke and carries'a beveled gear 70 which is secured upon this sliait between". the arms This bearingI `wardly oi' the machinel and extends through kan opening formed in the upper end portion oit the standard or support 74. The o eninOr i i P .-i

in the standard or support Te throughwhich the shaiptfi'?J passes will be ot sutlicient size tol permit the shatty to have rotary movement and also-to permit or sliding movement and of suii'icient transverse movement to-'permit the` cradle and rocher bar to have the desired swinging movement in ahorizontal plane.

llVhen this machine is in use7 it can vbe used as an ordinary road scraper with the auxiliary blades swung up" out ci position for engagement with the ground. lWhen it is desired to cover a greater portion oi the road with a single operation, the actuating shatt -72 will be turned by means of' the hand wheel 75 and the rocker bars will be swung' upon their pivots vto lower the auxiliary blades. lf duringthe scrapingoi' the road, it is desired to clean out va gutter at the side of the road, the-auxiliary blade at hat side oi' the machine will be swung downwardly a sufficient extent to 'extend 'down into the gutter Y and thus clean out the gutter While the machine is moving along the road. The auxiliary blades may be positioned as shown in Fig. l and held in this position against further rearward movement by the chain Lll and cable 40. `When in this position, the material gathered by the scraper will move along the auxiliary blade 27 to the main blade 9 and will then move along this main blade 9 onto the auxiliary blade 18. lNhen it is desired to clean out a gutter, or ditch and spread the dirt evenly over a road, the auxiliary blade 27, the main blade 9 and the auxiliary blade 18 can be raised or lowered `and held in position so that they will clean out the side of vthe ditch and spread the material where wanted and build up the road to any shape desired. In fact all the material can be spread before reaching the end of auxiliary blade 18 thereby cleaning the side of the ditch and shaping up the shoulder of the road all in one operation. Surplus material which reaches the end of the auxiliary blade i8 will be left upon the road where it can be very easily collected. lf desired, the material which has been scraped towarc the vcenter of the road'may be formed in piles by setting the main blade 9 so that it extends transversely across the machine and setting both of the auxiliary blades so that they extend forwardly. A substantially triangular shaped scraping structure will thus be provided so that the material to be removed in wagons can be scraper. into piles. After a sufficient quantity has been gathered to form one pile, the hand-wheels 7 will be turned to rotate the stems 5 and thus draw the auxiliary frame 2 upwardly a sufficient distance to permit of the scraping blades passing over the pile which has been formed. The. hand-wheels will then be turned in the opposite direction to again bring the scraping blades into the operative posit-ion. Then the auxiliary blades and operating structure are applied to the auxiliary frame of the scraper, they add extra Weight which would malte it somewhat difficult to raise the auxiliary frame and therefore there has been provided cables 7 G which are connected with the auxiliary frame and then carried upwardly and pz; l over pulley wheels 77 carried by a shaft The cables are then extended forwardly and connected with plungers 79 which are slidably mounted in bearing brackets 8O and yieldably held against rearward sliding movement by means of springs 81. These springs will thus serve to yieldably 'retain the auxiliary frame against downward movement and assist inaterially in the lifting of the auxiliary frame. There has thus been provided an attachment which can be readily connected with a conventional structure of road scraper.

In some cases, it has been found that it is better to have the bracket 43 extend for-v wardly of the front axle instead of rearwardly therefrom as shown in Fig. l. The

bracket can then be arranged as shown inv Fig. l2 with the chain 4l extending in front of the trout wheel and directly connected to the arm e8 instead of extending beneath the frame of the machine and after engaging the guide pulley Ll5 have its end connected with the bracket 4l7-` I claim:

l. The combination with a road scraper including a frame, a 4turn-table, and a road scrapin blade carried thereby, of auxiliary scraping lades .connectd with the end portions of the first mentioned scraping blade, and means connected with one of the auxiliary blades for bracing the blades and table against turning in one direction and for turning the blades and table in an opposite direction to adjust the angular position of theblades.

2. The combination with a road scraper including frame, a turn-table, and a road scraping blade carried thereby, of auxiliary scraping blades connected with the end por tions of the rst mentioned scraping blade. a cable connected with one of said auxiliary blades, and means for drawing upon the line to swing the turn-table and position the blades at a desired angle and brace the blades against movement out of the desired position. n

3. The combination with a road scraper including a frame, a'turn-table, and a road scraping blade carried thereby, of auxiliary d L i V" v scraping blades connected with the end por tions of the first mentioned scraping blade, both of said auxiliary blades being mounted for ver ical swinging movement and one ot the auxiliar blades beine mounted for hori-- zontal swinging movement, means for hori- Zontally adjusting the last mentioned auxiliary blade, means connected with the other auxiliary blade for bracing the blades and turn-table against turning as a unit in one direction, and means for vertically adjusting the auxiliary blades.

t. The combination with a road scraper including a frame, a turn-table, anda road scraping blade carried thereby, of auxiliary scraping blades connected withthe end portions or the first mentioned scraping blade, a. cable connected with one of said auxiliary blades, a drum carried by said frame guide means adjacent the forward end of said frame, the cable being wound upon said drinn and carried forwardly and about the guide means and then rearwardly and connected with the outer end portion of the auxiliary blade to brace the blades and turn-talile against turning as a unit iu one direction.

5. The combination with a road scraper including a frame, a turn-table, and a road Y iio ment, and cables wound upon the end portions of tne drum and carried forwardly and engaged with the guide means, one cable being connected with the arm to brace the horizontally swinging blade against rearward swinging movement and the other cable being connected with the other auxiliary blade to brace the blades and turntable against turning as a unit in one direction.

6. The combination with a road scraper including a frame, a turn-table and a main scraper blade carried by the turn-table, of an auxiliary blade connected with the main blade for vertical swinging movement and extending beyond the end of the main blade, a rocker bar pivotally mounted above the auxiliary blade, an arm depending from the outer end of said bar and slidably connected with said auxiliary blade, resilient means yieldably holding the auxiliary blade against vertical movement independent oi said arm, and means for rocking the rocker bar to vertically adjust the auxiliary blade.

7. The combination with a road scraper including a frame, a turn-table and a main scraper blade carried bythe turn-table, or an auxiliary blade connected with the main blade for vertical swinging movement and horizontal swinging movement, means for controlling horizontalswinging of the auxiliary blade, a cradle pivotally mountedv above said main blade for horizontal move-` ment, a rocker bar pivotally carried by the cradle for vertical swinging movement and extending longitudinally of the cradle and having its outer end portion connected with the auxiliary blade, and means for control ling vertical movement of the rocker bar.

S. rlhe structure ci? claim 7 having the :sans for controlling horizontal swinging of the auxiliary blade consisting oi' an arm extending` forwardly from the free end portion of the auxiliary blade, a drum carried by said frame, a guide adjacent theforward end oit the frame, a bracket swiveled upon the end of the arm for horizontal movement, and a cable wound upon said drum and extended forwardly about the guide and connected with said bracket. i

fl. The structure oi claim 7 having the cradle provided with a head extension at its inner end and strips engaging the head extension to guide horizontal swingingmovement ofthe cradle and hold` the cradle against vertical tilting.

l0. The structure 'of claim '7, and means for bracing the cradle against vertical tilting movement.

ll. The combination with a road scraper including a frame, a turn-table, a Cross bar carried by the turn'stable, and a main scraper iliary scraper blade connected with the main blade for vertical and horizontal swinging` movement, a cradle..pivotally connected with the cross bar for horizontal swinging movement, a rocker .bar extending longitudinally in the cradle and pivotallyv mounted k'for vertical movement and having its outer shaft to impart rocking movement to said blade carried by the cross bar, of an `aux-v rocker shaft, and means for controlling hor- Y izontal swinging movement of the axuiliary blade and cradle.

l2. rllhe structure of claim l1 having the threaded shaft extending above the cradle,

a bearingbracket loosely mounted upon the extended end portion of the threaded shaft, an operating shaft journaled in the bearing bracket, and intermeshing gears carried by the operating shaft and threaded shaft.

In testimony whereof l have hereunto set my hand. 

